Fuel Evaporation Parameter Identification during SI Cold Start
2001-01-0552
03/05/2001
- Event
- Content
- The stochastic properties of continuous time model parameters obtained through discrete least squares estimation are examined. Particular attention is given to the application of estimating the fuel evaporation dynamics of a V-8 SI engine. The continuous time parameter distributions in this case are biased. The bias is shown to be a function of both measurement noise and sampling rate selection. Analysis and experimental results suggest that for each particular model, there is a corresponding optimum sampling rate. A bias compensation formula is proposed that improves the accuracy of least squares estimation without iterative techniques.
- Pages
- 12
- Citation
- Pakkala, J., and Burl, J., "Fuel Evaporation Parameter Identification during SI Cold Start," SAE Technical Paper 2001-01-0552, 2001, https://doi.org/10.4271/2001-01-0552.